using System;
using System.Collections.Generic;
using System.Text;

namespace FinanceAnalyzer
{
    public interface IMoneyFlow
    {
        void Add(string comment, double value);

        double Sum();

        double Sum(String year);

        void ExcelExporter();

        void Remove();

        void UpdateDB(object sender, MonthChangedEventArgs e);

        List<DateTime> getYears();
    }
}
